Akademik

grandmother

a) The mother of someone’s parent.

b) A female ancestor or progenitor.

Syn: baba, gammy, gram, gramma, gran, grandma, grandmom, granny, mimi, nan, nanna, nanny, Mamaw, Bam-ma

Ant: grandfather, granddaughter, grandson, grandchild

See Also: great-grandfather

Wikipedia foundation.